[tex]a)\\\\\not{5}^1* \frac{7+19}{\not{10}^2 }=\frac{26}{2}=13\\\\b)\\\\\not{6}^2*\frac{7-3}{\not{3}^1}=2*4=8\\\\c)\\\\ \frac{14-9}{9+6}*3=\frac{5}{\not{15}^5}*\not{3}^1=\frac{5}{5}=1[/tex]
[tex]d)\\\\\not{21}^3*\frac{ \frac{1}{2}+7 }{\not{7}^1}=3*7\frac{1}{2}=3*\frac{15}{2}=\frac{45}{2}=22\frac{1}{2}\\\\e)\\\\\frac{8}{9-4} :\frac{16-10}{12}=\frac{8}{5} :\frac{6}{12}=\frac{8}{5} :\frac{1}{ 2} = \frac{8}{5} *\frac{2}{1 }=\frac{16}{5}=3\frac{1}{5}\\\\f)\\\\ (\not{14}^2* \frac{81-17}{\not{21}^3} ):\frac{8}{3}=(2*\frac{64}{3})*\frac{3}{8}=\frac{\not{128}^{16}}{\not{3}^1}*\frac{\not{3}^1}{\not{8}^1}=16[/tex]
